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5-Hydroxylamino- and 5-methoxylamino-5-methyldibenzo[a,e]cyclo-octatrienes readily cyclise to give azabicyclo[4.2.1]nonane (dibenzohomotropane) products; thermolysis of the 5-azide yields the tricyclic [3.2.1.0] aziridine, which selectively cleaves to give the azabicyclo[3.3.1]nonane (pavine) ring system.
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Leeson et al. (1989) studied this question.
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